Raising a Sails.js application causes a node.js approval error

Question

I recently updated Sails.js to the latest version: 0.12.1. Raising sails with Nodemon, I get the following error in my terminal:

node.js:262
      if (!x) throw new Error(msg || 'assertion error');
                    ^
Error: assertion error
    at process.assert (node.js:262:21)
    at process.removeListener (node.js:674:9)
    at removeListeners (/usr/local/lib/node_modules/sails/lib/app/lower.js:166:19)
    at /usr/local/lib/node_modules/sails/node_modules/async/lib/async.js:713:13
    at iterate (/usr/local/lib/node_modules/sails/node_modules/async/lib/async.js:262:13)
    at /usr/local/lib/node_modules/sails/node_modules/async/lib/async.js:274:29
    at /usr/local/lib/node_modules/sails/node_modules/async/lib/async.js:44:16
    at /usr/local/lib/node_modules/sails/node_modules/async/lib/async.js:718:17
    at /usr/local/lib/node_modules/sails/node_modules/async/lib/async.js:167:37
    at Server.<anonymous> (/usr/local/lib/node_modules/sails/lib/app/lower.js:148:13)
    at Server.g (events.js:199:16)
    at Server.emit (events.js:129:20)
    at net.js:1419:10
    at process._tickDomainCallback (node.js:381:11)
17 Feb 20:27:03 - [nodemon] app crashed - waiting for file changes before starting...

I'm not quite sure what causes this, and none of the other threads in StackOverflow respond. When I stop the process and restart it by typing nodemon, the error will disappear. This is my environment:

• Node.js Version: v0.12.7
• NPM Version: 2.11.3
• Sails.js Version: 0.12.1

How can i fix this?